ford parts guy said GM friction modifier will hurt my clutches
#1
Senior Member
Thread Starter
Join Date: Dec 2009
Location: Winnipeg, MB, Canada
Posts: 156
Likes: 0
Received 0 Likes
on
0 Posts
ford parts guy said GM friction modifier will hurt my clutches
changed my rear diff oil and used the proper weight oil in a Quaker State synthetic, but the friction modifier i bought has a GM label on it. I figured it's all the same, so I put it in. Well, I still have some rear end shuddering (but i had that before i changed the diff oil) and I read that some guys have had sucess with adding a second bottle. I only get that rear end shudder when I turn on grass slowly or when i have a load. So, i stopped in at the ford dealer becuase i happened to be going by one when i thought of it, so when i said I needa bottle of friction modifier he stopped me and he said OH you need TWO bottles. I said well i changed my diff fluid and put in one bottle but I hear a shudder. he said Oh ok and he got me a bottle. Well I mentioned I did not use a ford friction modifier for the first bottle and he said, oh your clutches are gonna deteriorate and wear out, drain it all and put all ford fluids. I said oh yea ok. and i bought the one bottle and drained enough of my diff oil to put in the FORD friction modifier and well, I haven't noticed any shuddering yet but I've only driven a few miles. I did not like the color of the oil that came out of my diff (had to drain a bit to get the other bottle in), it was pretty dirty we'll see how it goes over the next few days. I know that I may need new limited slip clutches so I thought I'd try this before doing that job myself. Any thoughts?
john
john
#3
I replaced my diff oil a few weeks ago and used GM friction modifier also. Before the oil change I had a very slight hum on acceleration and no chatter. week after the oil change I know have chatter and the diff howl is alot louder.. So I agree do not use GM friction modifier in a ford. I will be changing the oil this weekend and using ford products. If this does not fix the problem warranty repair here I come
#4
Senior Member
Thread Starter
Join Date: Dec 2009
Location: Winnipeg, MB, Canada
Posts: 156
Likes: 0
Received 0 Likes
on
0 Posts
I replaced my diff oil a few weeks ago and used GM friction modifier also. Before the oil change I had a very slight hum on acceleration and no chatter. week after the oil change I know have chatter and the diff howl is alot louder.. So I agree do not use GM friction modifier in a ford. I will be changing the oil this weekend and using ford products. If this does not fix the problem warranty repair here I come
john